Thomas Hettche Books

Ludwigs Tod

By Thomas Hettche

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What we are made of

By Thomas Hettche

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Niklas Kalf, a German writer, is in New York for the first time. He is accompanied by his wife Liz, who is several months pregnant. On the morning of their third day in the place, Liz is kidnapped....

What we are made of

By Thomas Hettche

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The Arbogast Case

By Thomas Hettche

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Woraus wir gemacht sind

By Thomas Hettche

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Der Fall Arbogast

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Unsere leeren Herzen

By Thomas Hettche

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Herzfaden

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Nox.

By Thomas Hettche

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.